单项选择题
A. Where is the AB? B. Where is the bosun? C. Where is the captain? D. Where is the chief officer?
A. What are you? B. How are you? C. Who are you? D. Where are from?
A. The gangway is a little higher，we should lower it. B. The gangway is a little higher, we should low it. C. The pilot ladder is a little higher，we should lower it. D. The pilot ladder is a little higher, we should low it.